15/100 = 15%
A value like 15/100, or 15%, shows up in everyday life in many ways. It could describe a 15% discount on a jacket, the amount of a battery that has been used, or the share of students in a class who walk to school.
To picture 15% quickly, imagine 100 equal squares with 15 of them shaded. It is a little less than one-fifth, since one-fifth is 20%, so you can estimate it as a small but noticeable portion.
A common mistake is thinking 15% means 15 out of 10 rather than 15 out of 100. Another point of confusion is that a 15% discount does not mean the final price is 15 cents; it means 15 out of every 100 cents, or 15 cents for each dollar.
